Saw-filing machine.



F. A. BLAIN. SAW FILING MACHINE.- APPLICATION FILED AUG. 20, 1907.

- Patented Apr. 27, 1909.

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/Valnemes 72 2/; W50 7, Za/ M I 7 M l/J/farzzay F. A. BLAIN. SAW FILING MACHINE. APPLICATION FILED AUG.20, 1907.

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Patented Apr. 2

llllv'lll lllll IIIL J I I I I| 4am was R A. BLAIN. SAW FILING MACHINE. APPLICATION FILED AUG. 20, 1907.

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'Patented Apr. 2'2 1909.

& mR m which actuate a screw shaft to move the filersthe space of one saw from another.

. The saidcam then strikes a pin on a slide bar to-swing the saw mandrel back into filing position, and in immediate successionsaid cam strikes a pm on another slide bar to start thefiling gearing'to operation-and at the same time moves the tripping roller back to the front of themachine to be tripped on the completion saw mandreL- h A trip er 16 is inounted on the saw mandrel 17 y means of a set screw 18'. The tri'per is-provided with a spring-actuated re 19 whichv engages a roller 20 which is of thenext revolution of the mounted on the end of a shiftingslide bar 21. It will be understood that the saw mandrel must make a complete revolution between each tripping operation so that all the teeth of one 'saw are sharpened by the filers before a'shift of the mandrel is made.

The object in making the rod 19 yielding is that when the mandrel 17 is swung back 26. The slide rod 25 is provided with suit? Jable bearings. belt from the fast pulley 27 to a loose pulley The belt shifter 26 shifts a 28 which pulleys are mounted on the main drivin shaft 15. The same shifter also shifts the be t fromthe" loose pulley to the fast pulley.

Spring 31 which is attached to the machme r ame and to the slide bar 21 moves said slide bar'when said slide bar is released from the locking pawl 29. When the tripper rod 19 strikes the roller 16, the

slide bar 21 is shifted sufficiently to be. released from the pawl 29.

Simultaneously with the last 0 eration a pinion 34 is locked to the loose pu 1 means of'a clutch whieh'is formed of one jaw on the hub of the pinion and one jaw on the hub of the loose pulley. ihis operation'is accomplished byreason of the fact that the 1 pawl 29 which isrigid with a vertical rockerf on the sha shaft 30 is released from the bar 21 and may be rocked. arm' 36 is rigid with the rocker-shaft 30 and this arm carries a yoke wh ch engages the hub 37"of the pinion 34 by which the fpinion 34'maybe moved axially t 15-. It will be understoodthat pulley 28 and pinion 34 are both loosely mounted on the. shaft 15 and that the pinion 34 stands normally in mesh with cog, 35.

While the pinion 34'fis not lockedtothe loose pulley 28, the running of the pulley28 accomplishes nothing, but as 'soon. as the ley 28 by,

dog 33 and release the lever 32. 32, being rigid with the vertical rocker shaft out of mesh with the cog pulley 34 is locked to the loose pulley, the driving belt on loose pulley drives also piu ion 34. The pulley 34 is locked to the pulley 28 by the action of a spring 90 which is attached to the machine frame and to an arm 91 on the rocker-shaft 30. As soon as the pawl 29 is released from bar 21, the spring 90 turns the shaft 30 and locks the pimon 34 to loose pulley 28. The pinion 34 then drives the cog 35. When cog 35 be ins to 7 turn, a cam 38 on cog 35 at once. engages a pin 39 on sliding bar 40 and moves this bar toward the front of the machine. The bar 40 is ivotally connected to a crank 41 which is rigid with the shaft 8. The bar 40 thus rocks the shaft 8 and this operation through cranks 8 and link bars or pitmen 9 throws the saw mandrel frame forward and moves the saws out of contact with the filers. The wheel 35'conti'nues to turn and in quick succession the pins 42 which constitute facc cogs on the face of cog 35 engage the pinion of star wheel 43. This pinion 43 isrevolved by the 1pins 42 and turns the screw shaft 44 to the lers the space of one saw from an, other, as hereinafter explained. The wheel "35 continues tolitevolve and the same cam 38 engages the in 45 on bar 40 and moves this bar toward t e back of the machine and thus rocks the shaft 8 to return the gang of saws back to operative position. Before the cam 38 finishes this operation, this same cam en- 'ages a pin 46. onaslide bar 47 to throw the filing gear into operative position. The vertical rocker-shaft 23 has an arm or crank 48 rigid therewith and a link bar 49 is pivotally connected with bar 47 and with arm 48. The vertical rocker-shaft 23 is thus rocked and the-arm or crank 24 shifts the driving belt back to the fast or driving pulley and at the same time the triaping slide bar 21 is moved to the front'of the machine by means of the arm or crank 22. The slide bars 21 and '47 move simultaneously in op osite directions. The bar 21 is actuate( by the spring 31 to throw the filing gear out of operation and the bar 47 is actuated by the wheel35 to throwthe filing gear into 0 )eration. 'ii'hegang of saws is brought to filing position almost at the same time (but slightly prior) as the driving belt is shifted to the fast or driving pulley. When the last .saw on the gang of saws has been filed a studbolt 92 on one of the filer frames will tri the This ever 120.

30, holds th s shaft to a very limited rocking {motion whilethelever 32 is locked. by the spring dog 33. This rocking motion is sufficient to allow the shaft 30 to lock and un- 1251 look the clutch of pinion 34 and loose pulle r 28,, but not suflicient to move the pimon 34 35. But when the dog 33 releases the lever 32, the spring 90 rocks the shaft 30 sufficient to move the 13d pinion 34"out of meshwith cog 35. Oonse; quently themachine will stop afterthe last saw on the mandrel has been sharpened.

The machine is provided tith means for sharpening the sazrs. f The drawings show two filers which are duplicates in construce tion and eration. The lers are driven by the main rivin shaft 15. Spgocket wheels 56 are mounted on shaft and sprocket wheels 51 are mounted on shafts 55 which are provided with journal bearings 52. The journal bearings 52. are rotatable by means of heads '53 which are integral "with the The openings through journal bearings 52; the journal bearings 52 for the shafts 55 are eccentrically disposed in the journal hearings'. The heads 53 and the journal bearings 52*are made stationary by means of the yokes 56 and nuts 57. The yokes may be released and the journals set with the shafts 55 "located at. the proper distance to take up the slack of the sprocket. chains 50. The

- of'pivot bolts 65. The block 64 is'pivotally' mounted-on the block 60 by means of a pivot bolt '66. The block 64 has a reduced up- .wardly projecting portion from which pro-' jects an arm 67 A rod 68 runs through arms 63 and through the upwardly project-' in'g portion of block 64 and a spiral spring 69 is mounted between each arm 63- and anut 70 on the rod 68. The rod 68guides the arms 63, causing them to vibrate in a horizontal A. bracket 71 is attached to block 60 and'pr'ovided with upwardly projecting ears Y and through the arm 67 to cause block 64- to plane.

72. A guide rod 73.runs through the ea 1;s -72 vibrate 'in'a horizontal plane and a. spiral frame piece or base spring .74 is mounted on the rod 73yon each.

side of the arm 6.7 and between said arm and each car 72. The block 64 has vibratory motion on the block'60, theparm 67 receiving the rod 73 loosely. The arms 63 receive the -'rod 68 "loosely so. that the arms have .vibra tory motion on the block 64, the arms 63 being pivotally mounted on said block The arms 63 carry files 7 5. At theouter cndsthe tips of the files run through the'point's of the arms 63-andtheinner ends of the-files are saw tooth on each side thereof. The block 61 whichcarries the filer is adjustable so that the files maybeset-at different heights. The

Which has upwardly .securedto the arms by clamps 76. The arms. 63 are crossed in operation for filing {each entire filing mechanism is mounted on 'a projecting bearin s 78 'Tl1e block 61 is pivotally nlounte in the bearings 78 by a downwardly projecting lug or 111 79 and a rocker-shaft 80 runs through the hp or lug 79 and through the bearings 78. A flange 81 formed 'on theblock 61. A stud 93 1s mounted rigidly in base 77 and a sleeve 82 having fianges at both ends-1s screr. ed down on the stud 93, the flange 81,.hav1ng-a slot to receive the sleeve 82. A spiral spring 74 is "mounted on the sleeve 82 between the upper flange of said sleeveand the flange 81. sleeve 82 may be screwed down more or less on the stud 93 and the spring74' wlll hold the flange 81 down on the lower flange of the sleeve. The block 64 is thus held at the desired height by the flange 8.1. The object of this vert1caladjustment is to adapt the files to the sans on the mandrel. The two filers areheld at fixed distances apart so that each 'filerwill file one-half of the saws on a gang of saws. The two filers are connected together by a telescopic frame composed of two rods at .the top, a frame piece at the bottom and connecting side pieces. k tracks 94 mounted on the frame pieces 3 and 4. jecting ears 84 and the telescoping are connected with the ears 84. l

rods 85 his conformed integral with telesco ic base pieces 87. The connecting frames have earings 88 which loosely engage the shaft 15. The'two parts of the base 87 are connected by slabs 89 which able-nuts. he object of making the connecting frame. telescopic is to make the frame adjustable to'saw mandrels of different len ths.

successively by the pawl 14 and ratchet 13. The pa'wlis actuated by aneccentric 95 which'is mounted on-shaft 15. -Everyti1ne the shaft 15 turns once, the pawl 14 moves the ,saw onetooth and the gearing of the tooth four times. i The filers travel on the screw 44. which is journaled in brackets "96. The filers are connected to the screw .44 by a separable yoke 97 which is threaded-to're ceivethe screw44. The yoke 97 is clamped on the screw 44 by means of a bolt 98 and a nut 99. The yoke engages the adjacent rod'85 and is held rigidly thereto bya set screw 100. The yoke 97 isclamped on the screw 44 at the beginning of the sharpening of a gang of saws; As the saws are sharpened the'filers move along, being carried by the screw, toward the-cog 35g As the last saw is fin,

dog, 83 and unlocks the lever 32, as heretoi'ore explained, and stops the machine from running: The yoke 97 may then bereleased The bars .77 are provided with These bars 77 have downwardly pro- The.

necti ng frame has upright portions 86 v. hich are connected to the bases 77and which are may be 'clam ped on the base piece's by suit heteeth on eachsaw are fed to a-filer I fillcris. adapted to'make'the files strike each ishe'd the stud bolt 92 strikes the tripping and the'filer s moved back to. their starting point. A driving belt 101 is shiftab'le from pulley 27 to pulley 28 and vice versa and tlis fbelt may be driven by any suitable 4 Having fully described my invention, what- I claim as new and ters Patent, is,

desire to secure by'Let- In a saw-filing machine; a traveling platfori'n,"a reciproeatory block mounted in said platform, a vibratory bloek'mounted on said reci rocatoryblock, file carrying arms pivotal y mounted on said vibratory block, and

, ineansforugui'di ig saidar ns in their vibratory motion in a plane parallel to the plane "of said vibratoryblock during operation. 2.. In a saw-filing machine a reciproin eating blodlr, a vibratory block mounted'on i said reciproeatory block and provided with an' arm projecting therefrom, a guide for guiding the arm in its vibratory motion, file carrying arms on thervibr'atory block adapted to vibrate-in a plane parallel to the. plane of said block, and meansfor guiding said arms n their vibratory motion. i 4

3. In a-saw filing macline a reciprocating block, a vibratory block mountedon said reciproeating block and provided with a projeetin'g arm, a-braeket mounted on said reciprocating block-and provided-with upstanding cars, a rod run through said arm and through "the ears of said bracket, a spring mounted oneacl' side of said, arm and bet-ween said ears,

file carrying arms pivotally mounted on said vibrator -,"block and adapted to vibrate ina- V "plane parallel to the plane of said vibratory look, and means for guiding the vibrations of said arms. a g 4. In asaw filing mael inc provided with a saw inandrel support and means for rotating said mandrel step by step; a' reciprocatingblock,gavibratory block carried by 'said reeiproeating block, said vibratory block havng u 'iwardly' projecting member, file carrying" arms pivotally mounted on said v bratory block and projectingon each side of saidupwardly projecting member, a 'rod runningthrough-said arms and through said I upwardly projecting member and provided with-nuts on; the ends thereof, and springs between said nuts and said arms on said rod.

-' 5. In a saw filing m cf ine provided with a I sawinandrel support and means for rotating said mandrel step by step; a traveling plat- 6. 1 In a saw filing machine provided with a saw mandrel support and means for rotating said mandrel ste bysstep; a traveling platform, a guide b oek pivotally mounted on said platform and provided with a laterally projecting flange, a reciprocating block moun'tedin said guide block, file carrying arms operatively mounted on said reciproeating block, a screw threaded stud mounted in said platform, -a sleeve moving loosely through said flange and provided with head flanges at both ends and screwed down on said stud, and a spring mounted on said sleeve between the upper head thereof and the flange carried by said guide block.

7 Ina saw filing machine provided with a main frame and a frame pivoted thereto for carrying a gang of saws a-filiiig mechanism movable on said frame, a shifting screw shaft connected with said filing mechanism and providedwith' a pinion,a main driving shaft,

' a. fast pulley mounted on said shaft for driv ing the filing mechanism, a second pulley and a pinion loosely mounted on said main driving shaft, means for locking said loose pulley. and said pinion together, a' belt shifter,.a belt, a cog wheel normally in mesh with said loose pinion and provided with pins for actuating said screw-shaft pinion, and means for automatically actuating said belt sl ifter to shift said belt from the fast pulleyto the. loose pulley and simultaneously locking said loose pulley to said loose pinion whereby said cog wheel commences to revolve.

8.- In a saw filing machine provided with a main frame and a frame pivoted thereto for carrying a mandrel for a gang of saws a filing mechanism movable on said main ,frame, means for shifting said filing mechanism step by step, a slide bar carrying pins near each end thereof and operatively connected with said mandrel frame, and a cog wheel provided with a cam andnieans for actuating said shifting means whereby said wheel engages one of said pins to swing said mandrelfranie out of filing position, on further turning actuates said shifting means, and on further turning engages 'the other pin to swing said mandrel frame back into position for filing the saws.

August, 1007.

Flt-AN K A. BLAiN. Witnesses: 1

J. W. CARTER,

L. (.QCHRAN. 

